vi written in 8.0.1 saved as previous version can't open with 7.1

[dmourer]

This vi is a modified version of the example Multi-Function-Ctr Retrigg Pulse Train Generation for AI Sample shipped with LV 8.0.1. I saved it for previous version, but it will not open in LV 7.1. I get error code 24, This vi cannot be loaded because it is broken and has no block diagram. Any ideas?

[smercurio_fc]

LabVIEW recognizes that it was saved from a different version and it needs access to the block diagram in order to compile the VI. No block diagram, no can do. Where did this VI come from? As near as I can tell it's not part of the hierarchy for the "Multi-Function-Ctr Retrigg Pulse Train Generation for AI Sample". Is it something you wrote? Did you get it from some other library? By the way, it's not clear why you're resaving as 7.1 since this "Multi-Function-Ctr Retrigg Pulse Train Generation for AI Sample" VI is available in 7.1 already.

[dmourer]

LabVIEW recognizes that it was saved from a different version and it needs access to the block diagram in order to compile the VI. No block diagram, no can do. Where did this VI come from? As near as I can tell it's not part of the hierarchy for the "Multi-Function-Ctr Retrigg Pulse Train Generation for AI Sample". Is it something you wrote? Did you get it from some other library? By the way, it's not clear why you're resaving as 7.1 since this "Multi-Function-Ctr Retrigg Pulse Train Generation for AI Sample" VI is available in 7.1 already.

The vi is Multi-Function-Ctr Retrigg Pulse Train Generation for AI Sample modified and resaved.

The reason I saved to 7.1 is because the machine I wrote it on has version 8.0.1 but not application builder. I have another machine with 7.1 application builder.

[smercurio_fc]

I was actually asking where the "Collect Data" VI came from. I know where the "Multi-Function-Ctr Retrigg Pulse Train Generation for AI Sample" comes from. As I indicated, I cannot seem to find "Collect Data" in the hierarchy for "Multi-Function-Ctr Retrigg Pulse Train Generation for AI Sample". As a test I opened LV 8.01., opened the "Multi-Function-Ctr Retrigg Pulse Train Generation for AI Sample", saved it for 7.1 and then opened it in 7.1 with no issues. So, I go back to my questions as to where "Collect Data" came from.

As for not having an app builder for 8.0.1, OpenG has a free app builder available. Can't speak to its compatibility with LV8, though. Still, might be worth a try.

[dmourer]

I was actually asking where the "Collect Data" VI came from. I know where the "Multi-Function-Ctr Retrigg Pulse Train Generation for AI Sample" comes from. As I indicated, I cannot seem to find "Collect Data" in the hierarchy for "Multi-Function-Ctr Retrigg Pulse Train Generation for AI Sample". As a test I opened LV 8.01., opened the "Multi-Function-Ctr Retrigg Pulse Train Generation for AI Sample", saved it for 7.1 and then opened it in 7.1 with no issues. So, I go back to my questions as to where "Collect Data" came from.

I guess I don't understand what you mean by where the "Collect Data" VI came from.

This is what I did:

I opened the example Multi-Function-Ctr Retrigg Pulse Train Generation for AI Sample in LV 8.0.1. I modified it to do what I needed, and I saved it as "Collect Data.vi". Then I copied it to the machine with LV 7.1 and attempted to build an exe. That is when I got the error.

Thanks for the tip about the app builder on OpenG. I will give it a try.

[Dennis_Knutson]

The OpenG app builder is not a replacement for the NI app builder. It is an enhancement. You still need to buy the NI app builder.

[smercurio_fc]

Didn't know that about the OpenG Builder. Too bad.

OK, I through "Collect Data" was a subVI that you might have created or gotten somewhere. I don't know what might have gone wrong. Like I said, I opened up the "Multi-Function-Ctr Retrigg Pulse Train Generation for AI Sample" and resaved it for 7.1 and it opened up just fine in 7.1. Can you post your 8.0.1 version of "Collect Data"?

<update>

Never mind, I just opened the VI you originall posted in 8.01. and resaved it as 7.1.

See attached. Does this work?

Message Edited by smercurio_fc on 04-20-2006 10:56 AM

[dmourer]

It worked. Thanks. What was wrong?

[smercurio_fc]

Nothing, as far as I could tell. I simply did a "File->Save for Previous Version", had 7.1 selected, and "Picture Control v2", and clicked "Save...".

I verified that it worked by opening the VI in 7.1.

Most curious... have you ever had this happen with other VIs?

[dmourer]

No, this was the first. Thanks for your help.